201110Boone County 6 Inch Orthophotographyraster digital data\\cos-svr-7\vol1\Proj_Management\312010195JeffersonCity\Metadata\Boone_6Inch.shpVirginia Geographic Information Network (VGIN)UnknownVirginia Base Map ProgramBoone County, Missouri contracted with the Sanborn Map Company to provide aerial data acquisition, ground control, aerial triangulation and digital orthophotography. Aerial imagery for this project was collected in the spring of 2011 to produce orthophotography at a 6-inch resolution.The collection of aerial photographyand production of orthophotography was executed to capture the existing ground conditions at a specific point in time for the purpose of GIS analysis. Orthophotography along with DTM data typically provides an accurate base for digitally representing geographic features upon which a GIS is built.2011032320110413ground conditionCompleteIrregular
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38.629776NoneorthophotographyimageryrasterNoneMissouriBoone CountyUSAFor information about local datasets, contact the appropriate locality.For information about local datasets, contact the appropriate locality.Boone CountyJason WarzinikGIS Managermailing and physical address801 E. Walnut, Room 221ColumbiaMO65201(573) 886-4325(573) 886-4325JWarzinik@boonecountymo.orgMicrosoft Windows Vista Version 6.0 (Build 6002) Service Pack 2; ESRI ArcCatalog 9.3.1.1850This data has been produced to be fully compliant with NSSDA Standards.Compliance with the accuracy standard was ensured by the placement of GPS ground control prior to the acquisition of aerial photography. The following checks were performed. 1. The ground control and airborne GPS data stream were validated through a fully analytical bundle aerotriangulation adjustment. The residuals of the adjustment met the required standards for accuracy.2. The DTM data was checked against the project control. The technician visited and confirmed the accuracy of the project mass points during initial compilation. 3. Digital orthophotography was validated through an inspection of edge matching and visual inspection for image quality.The following software was used: 1. Digital Orthophoto processing - APS. 2. Aerotriangulation - ISAT 3. DTM data - Z/I Imaging SSK, APSThe horizontal rootmeansquare error (RMSE) of the airborne GPS control data does note exceed 20cm. All orthoimagery meats a 95% (NSSDA Confidnce Interval.The vertical rootmeansquare error (RMSE) of the airborne GPS control data does note exceed30cmSanborn Map CompanySurvey Ground Control600computer program2011041520110416ground conditionSurvey Ground ControlPhoto Identifiable ground control points were selected for use in the Aerial Triangulation.Aerial Imagery Acquisition600disc20101103ground conditionAerial Imagery AcquisitionSanborn utilized a Z/I DMC digital sensor to acquire color leaf off imagery over the project area.Jefferson CityUnknownUnknownDigital Elevation Model600discground conditionDEMClient supplied raster LiDAR DEMThe digital aerial imagery for the 6-inch resolution orthophotography was collected at an average flying height of 5700 feet above sea level with a DMC camera. The Ground control used to support the orthophotographic mapping was collected by either paneling of permanent monuments or photographic identification of strategic points. The coordinates were collected via ground survey techniques. Z/I ISAT software was utilized for the aerial triangulation phase, using high accuracy softcopy stereo plotters. A photogrammetric project was created, adding camera data, photo data, ground control point data and exterior orientation data. An interior orientation was performed for the project photos, automatic pass and tie measurements were executed and finalized with manual measurement of surveyed ground control. The final bundle adjustment was executed using Photo Triangulation (PhotoT) software. The 6-inch resolution or 1"=100' map data was segmented into 2500' X 2500' tiles. Utilizing the raw images from DMC camera, client supplied DTM data, and digital aerial triangulation resulted in the creation of 4-band (RGB,CIR) digital orthoimagery. The digital aerial imagery was rectified using the best algorithm, radiometrically balanced to produce digital imagery of nominally consistent tone and contrast and mosaiced to create a seamless orthophotography of the entire project area. The data was tiled and complete tiles were delivered as GeoTIFF with supplementary TFW files.201102SanbornRaquel CharroisProject Managermailing and physical address1935 Jamoboree Dr, Suite 100Colorado SpringsCO80920USA719.264.5504719.528.50930-1RasterG-polygon1Pixel250025000.0000000.000000degreeNorth American Datum of 1983Geodetic Reference System 806378137.000000298.257224
Boone_6InchFIDInternal feature number.ESRISequential unique whole numbers that are automatically generated.ShapeFeature geometry.ESRICoordinates defining the features.IdDownloadable Data0.00320111006Boone CountyJason WarzinikGIS Managermailing and physical address801 E. Walnut, Room 221ColumbiaMO65201(573) 886-4325(573) 886-4322jwarzinik@boonecountymo.orgFGDC Content Standards for Digital Geospatial MetadataFGDC-STD-001-1998local timehttp://www.esri.com/metadata/esriprof80.htmlESRI Metadata Profile